[  511.557300] bond0: (slave eth0): making interface the new active one
[  511.557382] bond0: (slave eth0): Enslaving as an active interface with an up link
[  515.802173] bond0: (slave eth0): Releasing backup interface
[  515.900184] bond0: (slave eth0): Enslaving as an active interface with an up link
[  520.093943] bond0: (slave eth0): Releasing backup interface
[  520.125039] bond0 (unregistering): Released all slaves